491002040

素因数分解:

$2^3\times 5^1\times {\mathrm{12275051}}^1$

素因数の和:12275062

約数の個数: 16

約数和(自身を含む): 1104754680

約数和(自身を除く): 613752640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12275051, 24550102, 49100204, 61375255, 98200408, 122750510, 245501020, 491002040]

約数ペア:

[(1, 491002040), (2, 245501020), (4, 122750510), (5, 98200408), (8, 61375255), (10, 49100204), (20, 24550102), (40, 12275051)]